HS-ESS1-1

ScienceGrades 9–12Earth's Place in the Universe

The standard

Develop a model based on evidence to illustrate the life span of the sun and the role of nuclear fusion in the sun's core to release energy that eventually reaches Earth in the form of radiation.

Next Generation Science Standards

What this standard means

Students need to build a clear model showing how the Sun produces energy in its core, how that energy moves outward, and how it travels to Earth as radiation. They should use evidence from other stars, solar activity, and long-term observations to explain where the Sun is in its life span.

Mastery looks like a labeled model with evidence tied to each part, not just a pretty diagram. Students often mix up fusion with burning, think energy travels instantly from the core, or describe sunspots and flares without connecting them to changes in solar radiation reaching Earth.

Ways to teach it

  • Have students build a layered Sun model with paper circles, arrows, and labels showing fusion, energy transfer, radiation, and Earth’s position.
  • Ask students to explain why the Sun is not “on fire” using the words core, fusion, radiation, and evidence.
  • Give an exit ticket with three arrows to label: core energy source, path through the Sun, and radiation to Earth.
  • Use a current space weather report and have students connect solar flares or sunspots to changes in radiation that can affect satellites.

Plan a lesson for HS-ESS1-1

Generate a complete lesson plan aligned to this standard, with objectives, activities, and materials. Free, no account needed.

Related standards

  • MS-ESS2-4

    Develop a model to describe the cycling of water through Earth's systems driven by energy from the sun and the force of gravity.

  • MS-ESS2-1

    Develop a model to describe the cycling of Earth's materials and the flow of energy that drives this process.

  • HS-ESS2-3

    Develop a model based on evidence of Earth's interior to describe the cycling of matter by thermal convection.

  • HS-PS1-8

    Develop models to illustrate the changes in the composition of the nucleus of the atom and the energy released during the processes of fission, fusion, and radi...

Standard text verified against nextgenscience.org on July 10, 2026.

Page updated July 10, 2026.

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